this post was submitted on 21 Nov 2023
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[–] [email protected] 5 points 1 year ago (2 children)

No. We count start at zero because the array already starts with an element of a specific size. Starting at 1 would always skip that initial element.

[–] [email protected] 8 points 1 year ago* (last edited 1 year ago)

You could have "empty arrays" in a language if you wanted. The real reason is that you start with an offset of zero as you read an array from memory at hardware level, and so this way address is just "start address + element size * element number".

[–] [email protected] 4 points 1 year ago* (last edited 1 year ago) (1 children)

No, we start counting at one. We start indexing at zero.

An array with one element has an element count of 1, and that element would be at index 0.

[–] [email protected] 3 points 1 year ago

This is how we end up with off-by-one errors